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50 | Mobility Controller Configuration Campus Wireless Networks Validated Reference Design Version 3.3 | Design Guide
With the appropriate levels of encryption and authentication used, for different users associated and
authenticated to the same AP at the same time, the system is completely secured. The unique
combination of these security mechanisms and Aruba’s Role-Based Access Control (RBAC) gives an
Aruba User-Centric Network far more control and granularity of user traffic than simply demanding a
particular type of authentication and encryption. This same flexibility gives customers the ability to
deploy Remote APs that broadcast Employee SSIDs at a user’s home for telecommuting or at another
business to conduct a sales demonstration without fear of security breach.
Device Role
Special-purpose device roles are very similar to the guest access role; and most commonly include
active RFID tags, voice and video devices. Device roles should be setup to allow them to perform only
single functions and to be able to interact only with a known set of IP addresses. For example, a voice
device should only be able to run voice protocols such as Session Initiation Protocol (SIP) to the SIP
server, Real-Time Transport Protocol (RTP) and basic ICMP commands. Any other uses should result in
the device being blacklisted as it is most likely the subject of an impersonation attack.
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Internet
Data center
Master
Application
VLAN
Employee
SSID
Application
SSID
Guest
SSID
Web
File
RADIUS
PBX